<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">>
<head>
    <meta charset="UTF-8">
    <title>登录</title>
</head>
<body>
<p th:text="${msg}"></p>
<form th:action="@{/login}" method="post">
    <P>用户名 <input type="text" name="username"></P>
    <P>密码 <input type="text" name="password"></P>
    <p><input type="submit"></p>
</form>
</body>
</html>